Well i got some free time after work to use the shop and forklift and all, so i decided to install my monza exhaust for my 240. Well on a scale of 1-10, i would say that as far as difficulty, I'd say its a 4 if you take your time and do things right. Tools required: 17mm socket or wrench 12mm socket and wrench 1/2" socket, and ratchet. WD-40, vaseline and a prybar with a tapered end (to stretch the rubber hangers) help too. Install time: with dissasembly (10 mins for me) and frustration trying to rush through, roughly an hour. The monza exhaust i got was a simple 3 piece design, and though it is almost identical to stock piping (2.5" instead of 2.25") it is a huge difference. The chrome tips are absolutely beautiful. It sounds so clean and rumbles pretty well. It definately added some power throughout the rpm range. All in all, i like it and would recommend it to anyone on a budget.

My score, 4 out of 5 stars. It could have a slightly better construction and stuff, but it does its job.